I recently rebooted/updated my NanoSD.
My graphs for the day (minute resolution) now show glitches now and then (even from time before I did the reboot). When looking in the data records, none of these irregular values are to be found anywhere.
Does not matter if I choose my own metagraph template or the preinstalled.
I downgraded to version 5.1 and the glitches are gone. (The two "dropouts" that can be seen is where I rebooted the Nano, so those are expected.)
Any ideas, anyone?
Kindest regards
Robert

Ver 5.2: ...
Ver 5.1: